https://test-devzone.nordicsemi.com/f/nordic-q-a/88800/nrf9160-xcountrydata-commandCan you please explain how the %XCOUNTRYDATA command can speed up network selection in a new location? Does the modem perform a general scan on all bands to determine the MCC of the first signal detected and then limit the search to the values in %XCOUNTRYDATAen-USTelligent Community 13 Non-ProductionMon, 13 Jun 2022 14:45:43 GMThttps://test-devzone.nordicsemi.com/thread/372202?ContentTypeID=1Mon, 13 Jun 2022 14:45:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ead16fe1-ff9d-434a-bfcb-b493e8978c99user112695<p>I don&#39;t think I quite understand.&nbsp; &nbsp;If we set XCOUNTRYDATA for numerous countries, say the maximum number of 70, what happens when the device changes countries?&nbsp; &nbsp;How does it learn of the MCC so that it can decide what country to prioritize? Will XCOUNTRYDATA be effective in minimizing search when we perform a live over-the-air test on the module at a manufacturing facility in one country and then ship the product to another country?</p><div style="clear:both;"></div>https://test-devzone.nordicsemi.com/thread/372182?ContentTypeID=1Mon, 13 Jun 2022 13:49:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84078498-6641-4798-a99b-cee88062b959user73166<p>Hello,</p> [quote user=""]Does&nbsp;the modem perform a general scan on all bands to determine the MCC of the first signal detected and then limit the search to the values in %XCOUNTRYDATA as it continues?[/quote] <p>The modem will prioritize the bands set by the XCOUNTRYDATA command.</p> [quote user=""]What happens when the modem power cycles?&nbsp; Upon power up, does the modem always revert to the last known network, and if not found, then jump all the way back to the beginning and starts a general scan?[/quote] <p>It will first scan for the band that was previously connected to, then it will move on to other bands until successful connection.</p><div style="clear:both;"></div>